Combined three-piece tub and surround



FIG. 1 is a front, top perspective view of a combined three-piece tub and surround showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a left side view thereof. 

I claim the ornamental design for a combined three-piece tub and surround, as shown and described. 